How to update SharePoint List Item programmatically

Below is a code snippet to programmatically update a SharePoint List Item using the Server Object Model.

Note - Please replace the place holders with actual values before using the code.

Following code finds item with ID 1 (this can be hard coded or passed as a variable) and updates the Title.

  using(SPSite site = new SPSite("http://SHAREPOINT_SITE_URL"))
{
	using(SPWeb web = site.RootWeb)
	{
		SPList list = web.Lists["LIST_NAME"];
		SPListItem item = list.GetItemById(1);
		item["Title"] = "this is the updated title";
		item.Update();
	}
}